Is ‘blue blood’ ever really blue?
Is blood ever blue? That is, is there ever really such a thing as blue blood – outside the science-fiction world, anyway?
Can you grow your own penicillin?
Is it possible to grow your own penicillin at home? Not just any mold, but actually make mold with medicinal benefits. Solid gold mold Penicillin was discovered rather accidentally by Alexander Fleming in 1928, when he noticed that mold growing in a petri dish had killed all the staph bacteria around it. Since then, penicillin has gone…
Why is yawning contagious?
It’s common to see someone yawn — even on TV — and yawn in response. But how does that happen, and why is yawning contagious?
Can pet birds make you sick?
Bird owners should know that although their pet birds might be highly intelligent and clean companions, they may carry germs that can make you sick. Here’s a look.
How much do animals sleep?
How much do animals sleep? From bats to giraffes, here are the typical sleep needs for more than 30 different creatures — including humans.
What’s the difference between first, second & third-degree burns?
How can you tell the difference between first, second and third-degree burns? Here’s a quick look at the symptoms that may be experienced, and typical treatments when the heat gets close enough to hurt.
Why do fish have mercury in them?
How come fish have mercury in them – because isn’t seafood supposed to be healthy to eat?
What if you ate the little packet that says Do Not Eat?
What would happen if you actually did eat one of those little packets you find everywhere that says ‘DO NOT EAT’ all over it?
Why do they call it ‘plastic’ surgery?
Why do they call it ‘plastic’ surgery? Is it because they put plastic in people?
How can you better remember your dreams?
Why do people have trouble remembering their dreams? And more to the point: is there anything you can do to improve your dream recall? Get some tips here!
What’s the thing hanging in the back of your throat?
What is the purpose of that little thing that hangs down in the back of your throat? It’s called the uvula, and here are the basics.
How many people have ever lived on Earth?
How many people have ever lived on Earth in all of time? Is it even possible to answer this question? Yes, it is possible.
How do you use a fire extinguisher?
You hopefully have at least one fire extinguisher at home — but do you know when to use it, or how? Here are the basics.
What is the average height for men and women?
What’s the average height for men and women? If you’re curious how you measure up, we have some numbers for you.
Are warm air hand dryers really more sanitary than paper towels?
Hand dryers are environmentally-friendly, sure – but ‘more sanitary to use than paper’? Not so much.
How can you figure out what gave you food poisoning?
Was it something you ate? If you feel sick – really sick – how can you track down the cause of food poisoning? Get some tips here.
Why do we say ‘bless you’ after a sneeze?
Where in the world did we get the custom of saying ‘bless you’ every time someone sneezes? We take a look way, way back to find out.
Why can’t you pump your own gas in New Jersey & Oregon?
Why can’t you pump your own gas in New Jersey and Oregon, and have to pay for full-service? Self-service works for all the other states, so why make it illegal?
How can you calculate your BMI?
Where can you find out how to measure and calculate your BMI – and how does it relate to whether or not you’re overweight?
Do you have to recycle batteries, or can they go in the trash?
I was just about to throw out some old AA batteries when my girlfriend stopped me and said that I had to recycle them because “they” won’t let you put them in the garbage anymore. Is this true? Billions & billions of batteries Americans use up and throw out billions of everyday household batteries each…